axial piston variable pump (a)a10vso series 31€¦ · bosch rexroth ag, re-a 92711/04.2017 6...
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RE-A 92711/04.2017, Bosch Rexroth AG
Features ▶ Variable pump with axial piston rotary group in swash-
plate design for hydrostatic drives in open circuit. ▶ The flow is proportional to the drive speed and displace-
ment. ▶ The flow can be infinitely varied by adjusting the swash-
plate angle. ▶ 2 drain ports ▶ Excellent suction performance ▶ Low noise level ▶ Long service life ▶ Favorable power/weight ratio ▶ Versatile controller range ▶ Short control time ▶ The through drive is suitable for adding gear pumps and
axial piston pumps up to the same size, i.e., 100% through drive.
▶ Suitable for operation with mineral oil and HF hydraulic fluids
▶ All-purpose medium pressure pump ▶ Sizes 18 to 140 ▶ Nominal pressure 4100 psi (280 bar) ▶ Maximum pressure 5100 psi (350 bar) ▶ Open circuit
Axial piston variable pump(A)A10VSO Series 31
AmericasRE-A 92711Edition: 04.2017Replaces: 04.2012
ContentsType code 2Hydraulic fluids 4Working pressure range 6Technical data, standard unit 7Technical data, high-speed version 8Technical data, HF hydraulic fluids, maximum rotational speed 9DG – Two-point control, direct operated 12DR – Pressure controller 13DRG – Pressure controller, remote controlled 14DFR/DFR1 – Pressure flow controller 15DFLR – Pressure, flow and power control 17ED – Electrohydraulic pressure control 18ER – Electrohydraulic pressure control 19Dimensions, size 18 to 140 20Dimensions, through drive 38Overview of mounting options 42Combination pumps (A)A10VSO + (A)A10VSO 43Connector for solenoids 44Installation instructions 45Project planning notes 48Safety instructions 48
Bosch Rexroth AG, RE-A 92711/04.2017
2 A10VSO Series 31 | Axial piston variable pumpType code
Type code
01 02 03 04 05 06 07 08 09 10 11 12 13
A10VS O / 31 – V
Version 18 28 45 71 88 100 14001 Standard version (without code) ● ● ● ● ● ● ●
HFA, HFB, HFC hydraulic fluid (except for Skydrol) ● ● ● ● ● ● ● E
High-speed version (external dimensions are not affected by this option). – – ● ● – ● ● H
Axial piston unit02 Swashplate design, variable, nominal pressure 4100 psi (280 bar), maximum pressure ● – – – – – – A10VS
5100 psi (350 bar) – ● ● ● ● ● ● AA10VS
Operating mode03 Pump, open circuit O
Size (NG)04 Geometric displacement, (see table of values on pages 6 and 7) 18 28 45 71 88 100 140
Control device05 Two-point control, direct operated ● ● ● ● ● ● ● DG
Pressure controller hydraulic ● ● ● ● ● ● ● DR
with flow controller hydraulic X-T open ● ● ● ● ● ● ● DFR
X-T plugged with flushing function ● ● ● ● ● ● ● DFR1
X-T plugged without flushing function ● ● ● ● ● ● ● DRSC
with pressure cut-off hydraulic remote controlled ● ● ● ● ● ● ● DRG
electrical negative control U = 12 V ● ● ● ● ● ● ● ED71
U = 24 V ● ● ● ● ● ● ● ED72
electrical positive control U = 12 V ● ● ● ● ● ● ● ER71
U = 24 V ● ● ● ● ● ● ● ER72
Pressure,flow and power controller – ● ● ● ● ● ● DFLR
Series06 Series 3, index 1 31
Direction of rotation07 Viewed on drive shaft clockwise R
counter-clockwise L
Sealing material08 FKM (fluoroelastomer) V
NBR (nitrile rubber) only if using HFA, HFB and HFC hydraulic fluids (position 01; order code “E”) P
Drive shaft09 Splined shaft
ANSI B92.1astandard shaft ● ● ● ● ● ● ● S
similar to shaft “S” however for higher input torque ● ● ● ● ● – – R
reduced diameter, not for through drive ● – – – – ● – U
Parallel keyed shaft ISO 3019-1 permissible through-drive torque (see page 10) ● ● ● ● ● ● ● K
Mounting flange 18 28 45 71 88 100 14010 ISO 3019-1 2-hole ● ● ● ● ● ● ● C
4-hole – – – – – – ● D
Working port11 SAE flange port UNC fastening
threadat side, opposite ● ● ● – – ● ● 62
– – – ● ● – – 92
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Type code
3
Through drive (for mounting options, see page 42)
12 Flange ISO 3019-1 Hub for splined shaft1)
Diameter Diameter 18 28 45 71 88 100 140
without through drive ● ● ● ● ● ● ● N00
82-2 (A) 5/8 in 9T 16/32DP ● ● ● ● ● ● ● K01
3/4 in 11T 16/32DP ● ● ● ● ● ● ● K52
101-2 (B) 7/8 in 13T 16/32DP – ● ● ● ● ● ● K68
1 in 15T 16/32DP – – ● ● ● ● ● K04
127-2 (C) 1 1/4 in 14T 12/24DP – – – ● ● ● ● K07
1 1/2 in 17T 12/24DP – – – – – ● ● K24
152-4 (D) 1 3/4 in 13T 8/16DP – – – – – – ● K17
Connectors for solenoids2)
13 Without connector (without solenoid, with hydraulic control only, without code) ● ● ● ● ● ● ●
HIRSCHMANN connector – without suppressor diode ● ● ● ● ● ● ● H
● = Available ○ = On request – = Not available
Notice ▶ Note the project planning notes on page 48. ▶ In addition to the type code, please specify the
relevant technical data when placing your order.
01 02 03 04 05 06 07 08 09 10 11 12 13
A10VS O / 31 – V
1) Hub for splined shaft according to ANSI B92.1a2) Connectors for other electric components can deviate.
Bosch Rexroth AG, RE-A 92711/04.2017
4 A10VSO Series 31 | Axial piston variable pumpHydraulic fluids
Hydraulic fluids
The (A)A10VSO variable pump is designed for operation with HLP mineral oil according to DIN 51524-2. Application instructions and requirements for hydraulic fluids should be taken from the following data sheets before the start project planning:
▶ 90220: Hydraulic fluids based on mineral oils and related hydrocarbons
▶ 90221: Environmentally acceptable hydraulic fluids ▶ 90222: Fire-resistant, water-free hydraulic fluids
(HFDR/HFDU) (for permissible technical data, see data sheet 90225)
▶ 90223: Fire-resistant, water-containing hydraulic fluids (HFAE, HFAS, HFB, HFC) for version “E” see also data sheet 90225.
▶ 90225: Restricted technical data only for operation with fire-resistant, water-free and water-containing hydraulic fluids (HFDR, HFDU, HFA, HFB, HFC)- technical data
Notes on selection of hydraulic fluidThe hydraulic fluid should be selected so that the operating viscosity in the operating temperature range is within the optimum range (νopt see selection diagram).
Notice ▶ The axial piston unit is suitable for operation with water-
containing HF hydraulic fluid. See version “E”
Viscosity and temperature of hydraulic fluids
Viscosity Shaft seal Temperature3) Comment
Cold start νmax ≤ 7400 SUS (1600 mm²/s)
NBR2) θSt ≥ −40 °F (−40 °C) t ≤ 3 min, without load (p ≤ 725 psi (50 bar)), n ≤ 1000 min-1
Permissible temperature difference between axial piston unit and hydraulic fluid in the system maximum 45 °F (25 K)
FKM θSt ≥ -13 °F (-25 °C)
Warm-up phase ν = 7400 to 1850 SUS(1600 to 400 mm²/s)
t ≤ 15 min, p ≤ 0.7 × pnom and n ≤ 0.5 × nnom
Continuous operation
ν = 1850 to 60 SUS(400 to 10 mm²/s)1)
NBR2) θ = +185 °F (+85 °C) measured at port L, L1
FKM θ = +230 °F (+110 °C)
νopt = 170 to 74 SUS(36 to 16 mm²/s)
Range of optimum operating viscosity and efficiency
Short-term operation
νmin = 60 to 50 SUS(10 to 7 mm²/s)
NBR2) θ = +185 °F (+85 °C) t ≤ 3 min, p ≤ 0.3 × pnom , measured at port L, L1
FKM θ = +230 °F (+110 °C)
▼ Selection diagram
-40 -25 -10 10 30 50 90 115700-40 -13 14 50 86 122 194 24015832
50
60
200300
100
500
1000
2000300046007400
VG 22VG 32VG 46VG 68VG 100
74
170
7
10
4060
20
100
200
400600
10001600
[SUS][mm2/s]
[°C][°F]
16
36
Warm-up phase
Maximum permissible viscosityfor cold start
Minimum permissible viscosityfor short-term operation
Temperature θ [ °C]
Visc
osity
v
Continuousoperation
Minimum permissible viscosity for cold start
νopt
1) Corresponds e.g. for VG 46 to a temperature range of +39.2 °F (+4 °C) to +185 °F (+85 °C) (see selection diagram)
2) Version EA10VSO...-P (if operating with HFA, HFB and HFC hydraulic fluids
3) If the temperature at extreme operating parameters cannot be adhered to, please contact us.
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Hydraulic fluids
5
Filtration of the hydraulic fluidFiner filtration improves the cleanliness level of the hydraulic fluid, which increases the service life of the axial piston unit. A cleanliness level of at least 20/18/15 is to be maintained according to ISO 4406.At very high hydraulic fluid temperatures (maximum 230 °F (110 °C), measured at port L, L1), at least a cleanliness level of 19/17/14 according to ISO 4406 is necessary.Please contact us if the above classes cannot be observed.
Bosch Rexroth AG, RE-A 92711/04.2017
6 A10VSO Series 31 | Axial piston variable pumpWorking pressure range
Working pressure range
Pressure at working port B Definition
Nominal pressure pnom 4100 psi (280 bar) The nominal pressure corresponds to the maximum design pressure.
Maximum pressure pmax 5100 psi (350 bar) The maximum pressure corresponds to the maximum working pressure within the single operating period. The sum of the single operating periods must not exceed the total operating period.
Single operating period 2 ms
Total operating period 300 h
Minimum pressure pB abs
(high-pressure side)145 psi (10 bar)1) Minimum pressure on the high-pressure side (B) which is required in order to
prevent damage to the axial piston unit.
Rate of pressure change RA max 232060 psi/s(16000 bar/s)
Maximum permissible speed of pressure build-up and reduction during a pres-sure change across the entire pressure range.
Pressure at suction port S (inlet)
Minimum pressure pS min
Standard 12 psi (0.8 bar)absolute
Minimum pressure at suction port S (inlet) that is required in order to avoid dam-age to the axial piston unit. The minimum pressure depends on the rotational speed and displacement of the axial piston unit.
Maximum pressure pS max 145 psi (10 bar)absolute
For higher inlet pressure, please consult us
Leakage pressure at port L, L1
Maximum pressure pL max 30 psi (2 bar)absolute1)
Maximum 7.5 psi (0.5 bar) higher than inlet pressure at port S, but not higher than pL max. A case drain line to the reservoir is required.
▼ Rate of pressure change RA max
pnom
∆t
∆p
Time t
Pres
sure
p
▼ Pressure definition
Pres
sure
p
t1
t2tnSingle operating period
Minimum pressure (high-pressure side)
Maximum pressure pmax
Nominal pressure pnom
Time t
Total operating period = t1 + t2 + ... + tn
NoticeWorking pressure range valid when using hydraulic fluids based on mineral oils. Please contact us for values for other hydraulic fluids.
Minimum permissible inlet pressure at suction port S with speed increaseIn order to avoid damage to the pump (cavitation), a mini-mum inlet pressure must be guaranteed at suction port S. The minimum inlet pressure level depends on the rotational speed and the displacement of the variable pump.
20
24
17
15
13
121.00.90.80.7
1.2
1.1
1.0
0.9
(1.4)
(1.6)
(1.2)
(1.0)
(0.9)
(0.8)
Rota
tiona
l spe
ed n
/nno
m
Hig
h sp
eed
vers
ion
Stan
dard
ver
sion
Inle
t pr
essu
re p
S ab
s [ps
i (ba
r)]
Displacement Vg/ Vg max
During continuous operation in overspeed over nnom, a reduction in operational service life is to be expected due to cavitation erosion.
1) Other values on request
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Technical data, standard unit
7
Technical data, standard unit
Size NG 18 28 45 71 88 100 140
Displacement, geometric, per revolution Vg max in3 1.10 1.71 2.75 4.33 5.37 6.10 8.54
(cm3) (18) (28) (45) (71) (88) (100) (140)
Rotational speedmaximum1)
at Vg max nnom rpm 3300 3000 2600 2200 2100 2000 1800
at Vg <Vg max2) nmax perm rpm 3900 3600 3100 2600 2500 2400 2100
Flow at nnom and Vg max qv max gpm 15.6 22 30.9 41.2 48.9 52.8 67
(l/min) (59) (84) (117) (156) (185) (200) (252)
at nE= 1800 rpm qvE max gpm 8.5 13.3 21.4 33.8 41.8 47.6 67
and Vg max (l/min) (32) (50) (81) (128) (158) (180) (252)
Power at nnom, Vg max P max HP 38 52 74 98 115 125 156
(kW) (28) (39) (55) (73) (86) (93) (118)
at Δp = 4100 psi at nE= 1800 rpm PE max HP 19 31 50 79 99 111 156
(280 bar) and Vg max (kW) (15) (24) (38) (69) (74) (84) (118)
Torque Δp = 4100 psi (280 bar) T max lb-ft 59 92 148 233 289 328 460
(Nm) (80) (125) (200) (316) (392) (445) (623)
at Vg max and Δp = 1450 psi (100 bar) T lb-ft 22 33 53 83 103 117 164
(Nm) (30) (45) (72) (113) (140) (159) (223)
Rotary stiffness of drive shaft
S c lb-ft/rad 8177 16460 27659 53019 53019 89350 124970
(Nm/rad) (11087) (22317) (37500) (71884) (71884) (121142) (169437)
R c lb-ft/rad 10953 19442 30258 56457 56457 – –
(Nm/rad) (14850) (26360) (41025) (76545) (76545) – –
U c lb-ft/rad 5967 – – – – 67187 –
(Nm/rad) (8090) – – – – (91093) –
K c lb-ft/rad 9839 19316 32382 60562 60562 99794 138961
(Nm/rad) (13340) (26189) (43905) (82112) (82112) (135303) (188406)
Moment of inertia for rotary group JTW lbs-ft2 0.022 0.040 0.078 0.197 0.197 0.396 0.574
(kgm2) (0.00093) (0.0017) (0.0033) (0.0083) (0.0083) (0.0167) (0.0242)
Case volume V gal 0.106 0.185 0.264 0.420 0.420 0.580 0.790
(l) (0.4) (0.7) (1.0) (1.6) (1.6) (2.2) (3.0)
Weight without through drive (approx.) m lbs 28 40 52 78 78 109 144
(kg) (12.9) (18) (23.5) (35.2) (35.2) (49.5) (65.4)
Weight with through drive (approx.) lbs 30 43 55 84 84 122 164
(kg) (13.8) (19.3) (25.1) (38) (38) (55.4) (74.4)
Notes see page 8
1) The values are applicable: ‒ At absolute pressure pabs = 15 psi (1 bar) at suction port S ‒ For the optimal viscosity range of νopt = 170 to 80 SUS (36 to 16 mm2/s) ‒ For hydraulic fluid based on mineral oils
2) For a speed increase up to nmax perm, please observe the diagram on page 6.
Bosch Rexroth AG, RE-A 92711/04.2017
8 A10VSO Series 31 | Axial piston variable pumpTechnical data, high-speed version (external dimensions are the same as the standard version)
Technical data, high-speed version (external dimensions are the same as the standard version)
Size NG 45 71 100 140
Displacement, geometric, per revolution Vg max in3 2.75 4.33 6.10 8.54
(cm3) (45) (71) (100) (140)
Rotational speed maxi-mum1)
at Vg max nnom rpm 3000 2550 2300 2050
at Vg <Vg max2) nmax perm rpm 3300 2800 2500 2200
Flow at nnom and Vg max qv max gmp 35.7 47 60.8 75.8
(l/min) (135) (178) (230) (287)
Power at nnom, Vg max and Δp = P max HP 84 111 143 180
and Δp = 4100 psi (280 bar) (kW) (63) (83) (107) (134)
Torque at Vg max and Δp = 4100 psi (280 bar) T max lb-ft 148 233 328 460
(Nm) (200) (316) (445) (623)
Δp = 1450 psi (100 bar) T lb-ft 53 83 117 164
(Nm) (72) (113) (159) (223)
Rotary stiffness of drive shaft
S c lb-ft/rad 27659 53019 89350 125044
(Nm/rad) (37500) (71884) (121142) (169537)
R c lb-ft/rad 30258 56457 – –
(Nm/rad) (41025) (76545) – –
U c lb-ft/rad – – 67187 –
(Nm/rad) – – (91093) –
K c lb-ft/rad 32270 60352 99448 144680
(Nm/rad) (43905) (82112) (135303) (188406)
Moment of inertia for rotary group JTW lb-ft2 0.078 0.197 0.396 0.574
(kgm2)) (0.0033) (0.0083) (0.0167) (0.0242)
Case volume V gal 0.264 0.420 0.580 0.790
(l) (1.0) (1.6) (2.2) (3.0)
Weight without through drive (approx.) m lbs 52 78 109 144
(kg) (23.5) (35.2) (49.5) (65.4)
Weight with through drive (approx.) lbs 55 84 122 164
(kg) (25.1) (38) (55.4) (74.4)
Notice ▶ Theoretical values, without efficiency and tolerances;
values rounded ▶ Operation above the maximum values or below the
minimum values may result in a loss of function, a reduced service life or in the destruction of the axial piston unit. Bosch Rexroth recommends checking the load by means of test or calculation / simulation and comparison with the permissible values.
1) The values are applicable: ‒ At absolute pressure pabs = 1 bar at suction port S ‒ For the optimal viscosity range of νopt = 36 to 16 mm2/s ‒ For hydraulic fluid based on mineral oils
2) For a speed increase up to nmax perm, please observe the diagram on page 6.
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Technical data, HF hydraulic fluids, maximum rotational speed
9
Determining the characteristics
Flow qv =Vg × n × ηv
[gpm (l/min)]231 (1000)
Torque T = Vg × Δp
[lb-ft (Nm)]24 (20) × π × ηmh
Power P =2 π × T × n
=qv × Δp
[HP (kW)]33000 (60000) 1714 (600) × ηt
Key
Vg Displacement per revolution [in3 (cm3)]
Δp Differential pressure [psi (bar)]
n Rotational speed [rpm]
ηv Volumetric efficiency
ηhm Hydraulic-mechanical efficiency
ηt Total efficiency (ηt = ηv × ηhm)
Technical data, HF hydraulic fluids, maximum rotational speed
Hydraulic fluid1) E-version Size psi (bar) NG 18 28 45 71 88 100 140
HFA at nominal pressure pN 2030 (140)nnom rpm 2450 2250 1950 1650 1550 1500 1350
at maximum pressure pmax 2350 (160)
HFB at nominal pressure pN 2030 (140)nnom rpm 2650 2400 2100 1760 1650 1600 1450
at maximum pressure pmax 2350 (160)
HFC at nominal pressure pN 2540 (175)nnom rpm 2650 2400 2100 1760 1650 1600 1450
at maximum pressure pmax 2900 (210)
Technical data, HFD hydraulic fluids
HFDR, HFDU polyalkylene glycol
at nominal pressure pN 4100 (280)nnom rpm
2650 2400 2100 1760 1650 1600 1450
HFDU polyol ester at nominal pressure pN 4100 (280) 3300 3000 2600 2200 2100 2000 1800
1) For further information on HF hydraulic fluids, please see data sheets 90223 and 90225
Bosch Rexroth AG, RE-A 92711/04.2017
10 A10VSO Series 31 | Axial piston variable pumpTechnical data, HF hydraulic fluids, maximum rotational speed
Permissible radial and axial forces of the drive shafts
Size NG 18 28 45 71 88 100 140
Maximum radial force at a/2 Fq max lbf(N)
79(350)
270(1200)
337(1500)
427(1900)
427(1900)
517(2300)
629(2800)
Maximum axial forceFax
+–
± Fax max lbf(N)
157(700)
225(1000)
337(1500)
540(2400)
540(2400)
899(4000)
1079(4800)
Notice ▶ The values given are maximum values and do not apply
to continuous operation. For drives with radial loading (pinion, V-belt drives) please contact us!
Permissible input and through-drive torques
Size 18 28 45 71 88 100 140
Torque at Vg max and Δp = 4100 psi (280 bar)1) T max lb-ft 59 92 148 232 289 328 460
(Nm) (80) (125) (200) (316) (392) (445) (623)
Maximum input torque at drive shaft2)
S TE max lb-ft 91 145 235 462 462 814 1195
(Nm) (124) (198) (319) (626) (626) (1104) (1620)
DIA in 3/4 7/8 1 1 1/4 1 1/4 1 1/2 1 3/4
R TE max lb-ft 118 184 295 475 475 – –
(Nm) (160) (250) (400) (644) (644) – –
DIA in 3/4 7/8 1 1 1/4 1 1/4 – –
U TE max lb-ft 43 – – – – 438 –
(Nm) (59) – – – – (595) –
DIA in 5/8 – – – – 1 1/4 –
K TE max lb-ft 77 107 156 319 319 553 875
(Nm) (104) (145) (212) (433) (433) (750) (1186)
DIA in 0.7500 0.8750 1.0000 1.2500 1.2500 1.5000 1.7500
(mm) (19.5) (22.225) (25.4) (31.75) (31.75) (38.1) (44.45)
Maximum through-drive torque
S TD max lb-ft 80 118 235 363 363 573 934
(Nm) (108) (160) (319) (492) (492) (778) (1266)
R TD max lb-ft 89 130 269 404 404 – –
(Nm) (120) (176) (365) (548) (548) – –
U TD max lb-ft 43 – – – – 438 –
(Nm) (59) – – – – (595) –
K TD max lb-ft 77 107 156 319 319 553 875
(Nm) (104) (145) (212) (433) (433) (750) (1186)
a
a/2 a/2
Fq
1) Efficiency not considered2) For drive shafts with no radial force
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Technical data, HF hydraulic fluids, maximum rotational speed
11
▼ Distribution of torques
TE
TD
T1 T2
T31st pump 2nd pump
Torque at 1st pump T1
Torque at 2nd pump T2
Torque at 3rd pump T3
Input torque TE = T1 + T2 + T3
TE < TE max
Through-drive torque TD = T2 + T3 TD < TD max
Bosch Rexroth AG, RE-A 92711/04.2017
12 A10VSO Series 31 | Axial piston variable pumpDG – Two-point control, direct operated
DG – Two-point control, direct operated
The variable pump can be set to a minimum swivel angle by connecting an external switching pressure to port X.This will supply control fluid directly to the stroking piston; a minimum control pressure of pst ≥ 725 psi (50 bar) is required.The variable pump can only be switched between Vg max or Vg min.Please note that the required control pressure at port X is directly dependent on the actual working pressure pB in port B. (See control pressure characteristic curve).The maximum permissible switching pressure is 4100 psi (280 bar).
Switching pressure pst in X = 0 psi (0 bar) Vg max
Switching pressure pst in X ≥ 725 psi (50 bar) Vg min
▼ Switching pressure characteristic curve
0 28050 100 150 200 250
120
100
50
Rec.
con
trol
pre
ssur
e p s
t [ps
i (ba
r)]
working pressure pB [psi (bar)]
▼ Circuit diagram
X
L B
SL1
MH1)
1) Only size 140
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 DR – Pressure controller
13
DR – Pressure controller
The pressure controller limits the maximum pressure at the pump outlet within the control range of the variable pump. The variable pump only supplies as much hydraulic fluid as is required by the consumers. If the working pressure exceeds the pressure command value at the pressure valve, the pump will regulate to a smaller displacement to reduce the control differential.
▶ Initial position in depressurized state: Vg max. ▶ Setting range1) for infinitely variable
290 to 4100 psi (20 to 280 bar) pressure control. Standard is 4100 psi (280 bar).
▼ Characteristic curve
4100 (280)
qv min qv max
290 (20)
Wor
king
pre
ssur
e p B
[ps
i (ba
r)]
Flow qV
Hys
tere
sis/
pres
sure
ris
e Δp
max
Characteristic curve valid at n1 = 1500 rpm and θfluid = 122 °F (50 °C).
▼ Circuit diagram, sizes 18 to 100
L B
SL1
▼ Circuit diagram, size 140
Controller data
NG 18 28 45 71 88 100 140
Pressure increase
Δp [psi(bar)]
60(4)
60(4)
87(6)
115(8)
130(9)
145(10)
175(12)
Hysteresis and repeatability
Δp [psi(bar)]
maximum 45 (3)
Control fluid consumption
[gpm(l/min)]
maximum approx. 0.8 (3)
1) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. The range of possible settings at the valve is higher.
Bosch Rexroth AG, RE-A 92711/04.2017
14 A10VSO Series 31 | Axial piston variable pumpDRG – Pressure controller, remote controlled
1) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. The range of possible settings at the valve is higher.
2) Zero stroke pressure from pressure setting ∆p on controller (2)
DRG – Pressure controller, remote controlled
For the remote controlled pressure controller, the LS pres-sure limitation is performed using a separately arranged pressure relief valve. Therefore any pressure control value under the pressure set on the pressure controller can be regulated. Pressure controller DR see page 11.A pressure relief valve is externally piped up to port X for remote control. This relief valve is not included in the scope of delivery of the DRG control.When there is differential pressure of 290 psi (20 bar) Δp (standard setting), the quantity of control fluid at the port is X approx. 0.4 gpm (1.5 l/min). If a different setting (range 145 to 320 psi (10 to 22 bar)) is required, please state in plain text.As a separate pressure relief valve (1) we recommend:
▶ a direct operated, hydraulic or electric proportional one, suitable for the control fluid mentioned above.
The max. length of piping should not exceed 6.6 ft (2 m). ▶ Basic position in depressurized state:Vg max. ▶ Setting range1) for pressure control 290 to 4100 psi
(20 to 280 bar) (3). Standard is 4100 psi (280 bar).
▶ Setting range for differential pressure 145 to 320 psi (10 to 22 bar) (2). Standard is 290 psi (20 bar).
Unloading port X to the reservoir results in a zero stroke (standby) pressure which is approx. 15 to 30 psi (1 to 2 bar) higher than the defined differential pressure ∆p, however system influences are not taken into account.
▼ Characteristic curve DRG
Wor
king
pre
ssur
e p B
[ps
i (ba
r)]
Flow qV
4100 (280)
qv min qv max
Stand by 2)
Hys
tere
sis/
repe
atab
ility
Characteristic curve valid at n1 = 1500 rpmand θfluid = 122 °F (50 °C).
▼ Circuit diagram DRG nominal size 18 to 100
L B
SL1
X
1
2
3
1 The separate pressure relief valve and the line are not included in the scope of delivery.
2 Remote controlled pressure cut-off (G).3 Pressure controller (DR)
▼ Circuit diagram, size 140
X
1
Notice ▶ There is no valve for maximum internal pressure set-
ting for size 140 DRG
Controller data DRG
NG 18 28 45 71 88 100 140
Hysteresis and repeatability
Δp [psi(bar)]
maximum 45 (3)
Control fluid consumption DR and DRG
[gpm(l/min)]
maximum approx. 1.2 (4.5)
RE-A 92711/04.2017, Bosch Rexroth AG
15 Axial piston variable pump | A10VSO Series 31 DFR/DFR1/DRSC – Pressure flow controller
DFR/DFR1/DRSC – Pressure flow controller
In addition to the pressure controller function (see page 13), a variable orifice (e.g. directional valve) is used to adjust the differential pressure upstream and down-stream of the orifice. This is used to control the pump flow. The pump flow is equal to the actual hydraulic fluid quantity required by the consumer. With all controller combinations, the Vg reduction has priority.
▶ Basic position in depressurized state:Vg max. ▶ Setting range1) to 4100 psi (280 bar). ▶ For pressure controller data see page 13
Notice ▶ The DFR1 version has no unloading between X and the
reservoir. Unloading the LS-pilot line must be possible in the valve system. Because of the flushing function of the flow controller in the DFR1 control valve, sufficient unloading of the X-line must also be provided.
▼ Characteristic curve
Wor
king
pre
ssur
e p B
[ps
i (ba
r)]
Flow qV
4100 (280)
qv min qv max
Stand by 2)
Hys
tere
sis/
pres
sure
ris
e Δp
max
▼ Characteristic curve at variable rotational speed
qV max
qV min
n0 nmaxRotational speed n
Flow
qV
[ l/m
in]
Hys
tere
sis
/ pr
essu
re in
crea
se Δ
q Vm
ax
Characteristic curve valid at n1 = 1500 rpmand θfluid = 122 °F (50 °C).
▼ Circuit diagram DFR size 18 to 100With DFR1 plugged
S
BL
X
1
L1
2
3
▼ Circuit diagram, size 140
With DFR1 plugged
B
X
1
2
3
1 The metering orifice (control block) and the line is not included in the scope of delivery.
2 Pressure and flow controller (FR).3 Pressure controller (DR)
For further information see page 16
1) In order to prevent damage to the pump and the system, the permissible setting range must not be exceeded. The range of possible settings at the valve is higher.
2) Zero stroke pressure from pressure setting ∆p on controller (2)
Bosch Rexroth AG, RE-A 92711/04.2017
16 A10VSO Series 31 | Axial piston variable pumpDFR/DFR1/DRSC – Pressure flow controller
Differential pressure ∆p: ▶ Standard setting: 200 psi (14 bar)
If another setting is required, please state in plain text. ▶ Setting range: 200 to 320 psi (14 bar to 22 bar)
Relieving the load on port X to the reservoir results in a zero stroke (“standby”) pressure which lies about 15 to 30 psi (1 to 2 bar)higher than the defined differential pressure Δp, however, system influences are not taken into account.Controller dataDR pressure controller data see page 13. Maximum flow deviation measured at drive speed n = 1500 rpm.
NG 18 28 45 71 88 100 140
Flow deviation Δqv max [gpm (l/min)] 0.20(0.9)
0.30(1.0)
0.50(1.8)
0.70(2.8)
0.90(3.4)
1.10(4.0)
1.60(6.0)
Hysteresis and repeatability Δp [psi (bar)] maximum 60 (4)
Control fluid consumption [gpm (l/min)] maximum approx. 0.8 to 1.2 (3 to 4.5) (DFR)maximum approx. 0.8 (3) (DFR1/DRSC)
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 DFLR – Pressure, flow and power control
17
DFLR – Pressure, flow and power control
Pressure controller equipped like DR, see page 13. Equipment of the flow controller like DFR1, see page 15In order to achieve a constant drive torque with varying working pressures, the swivel angle and with it the output flow from the axial piston pump is varied so that the prod-uct of flow and pressure remains constant.Flow control is possible below the power control curve.
▼ Characteristic curve and torque characteristic
0
725 (50)
∆qV
1450 (100)
2200 (150)
2900 (200)
3600 (250)
4000 (280)4350 (300)
0 100
Maximum power curve
(see table on page 16)
Wor
king
pre
ssur
e p B
[psi
(ba
r)]
Flow qV [%]
Torq
ue T
[Nm
]
Maximum power curve
Please contact us regarding beginning of control at < 725 psi (50 bar)When ordering please state the power characteristics to be set at the factory in plain text, e.g. 27 HP (20 kW) at 1500 rpm.
▼ Circuit diagram, sizes 28 to 100
X
L B
SL1
1
▼ Circuit diagram, size 140
X
L B
SL1
1
1 The metering orifice (control block) and the line is not included in the scope of delivery.
Controller dataFor technical data of pressure controller DR see page 13. For technical data of flow controller FR see page 16.Control fluid consumption approx. 1.5 gpm (5.5 l/min) max.
Bosch Rexroth AG, RE-A 92711/04.2017
18 A10VSO Series 31 | Axial piston variable pumpED – Electrohydraulic pressure control
ED – Electrohydraulic pressure control
The ED valve is set to a certain pressure by a specified variable solenoid current.With changes on the consumer (load pressure), this causesan increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level.The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current.As the solenoid current signal drops towards zero, the pressure will be limited to pmax by an adjustable hydraulic pressure cut-off (secure fail safe function in case of power failure, e.g. for fan speed control). The swivel time charac-teristic of the ED control was optimized for the use as a fan drive system. When ordering, specify the type of application in plain text.
▼ Static current-pressure characteristic curve ED (negative characteristic curve measured with pump in zero stroke)
Wor
king
pre
ssur
e [p
si (
bar)
]
Current I/Imax
4000 (280)
0 1
2050 (140)
0
Maximum ad-justable con-trol pressure
ED deactivation of control
Minimum adjustable control pressure
▶ Hysteresis static current-pressure characteristic curve < 45 psi (3 bar).
▼ Flow-pressure characteristic curve
qv min qv max
4000 (280)
2050 (140)
Max
imum
wor
king
pre
ssur
e P
[psi
(ba
r)]
(dee
nerg
ized
)
Sett
ing
rang
e
Flow qV
Hys
tere
sis/
pres
sure
ris
eΔp
max
< 6
0 ps
i (4
bar)
Characteristic curve valid at n1 = 1500 rpmand θfluid = 122 °F (50 °C).Control fluid consumption: 0.8 to 1.2 gpm (3 to 4.5 l/min).For standby standard setting, see diagram on right, other values on request.
▼ Influence of the pressure setting on standby (maximally energized)
435 (30)
405 (28)
500 (34)
465 (32)
375 (26)
350 (24)
320 (22)
290 (20)260 (18)
230 (16)200 (14)
2050(140)
2300(160)
2600(180)
2900(200)
3200(220)
3500(240)
3800(260)
4100(280)
Maximum pressure setting [psi (bar)]
Stan
dby
[psi
(ba
r)]
▼ Circuit diagram ED71/ED72
SL1
BL
X
Technical data, solenoid ED71 ED72
Voltage 12 V (±20%) 24 V (±20%)
Control current
Start of control at p max 0 mA 0 mA
Start of control at p min 1200 mA 600 mA
Current limit 1.54 A 0.77 A
Nominal resistance (at 20 °C) 5.5 Ω 22.7 Ω
Dither frequency 100 to 200 Hz
100 to 200 Hz
Duty cycle 100% 100%
Electronic controls and type of protection, see page 44
Operating temperature range at valve -4 °F to +239 °F
(-20 °C to +115 °C)
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 ER – Electrohydraulic pressure control
19
ER – Electrohydraulic pressure control
The ER valve is set to a certain pressure by a specified variable solenoid current.When changing the consumer (load pressure), this causes an increase or decrease in the pump swivel angle (flow) in order to maintain the electrically set pressure level.The pump thus only delivers as much hydraulic fluid as the consumers can take. The desired pressure level can be set steplessly by varying the solenoid current.If the solenoid current goes to zero, the pressure is limited to pmin (standby) by the adjustable, hydraulic pressure cut-off. Observe project planning note.
▼ Current-pressure characteristic curve (positive characteristic curve measured with pump in zero stroke)
0 10
200 (14)
4350 (300)4000 (280)3600 (250)
2200 (150)
725 (50)
Wor
king
pre
ssur
e [p
si (
bar)
]
Current I/Imax
Minimum adjustable control pressure
Maximum ad-justable con-trol pressure
Hysteresis static < 45 psi (3 bar).
▼ Flow-pressure characteristic curve
qv min qv max
4000 (280)
2050 (140)
Max
imum
wor
king
pre
ssur
e P
[psi
(ba
r)]
(dee
nerg
ized
)Se
ttin
g ra
nge
Flow qV
Hys
tere
sis/
pres
sure
ris
eΔp
max
< 6
0 ps
i (4
bar)
Characteristic curve valid at n1 = 1500 rpmand θfluid = 122 °F (50 °C).
▶ Control fluid consumption: 0.8 to 1.2 gpm (3 to 4.5 l/min). ▶ Standby standard setting 200 psi (14 bar). Other values
on request. ▶ Influence of pressure setting on stand by ± 30 psi
(2 bar).
▶ Circuit diagram
SL1
BL
X
Technical data, solenoid ER71 ER72
Voltage 12 V (±20%) 24 V (±20%)
Control current
Start of control at p min 100 mA 50 mA
End of control at p max 1200 mA 600 mA
Current limit 1.54 A 0.77 A
Nominal resistance (at 20 °C) 5.5 Ω 22.7 Ω
Dither frequency 100 to 200 Hz
100 to 200 Hz
Duty cycle 100% 100%
Electronic controls and type of protection, see page 44
Operating temperature range at valve -4 °F to +239 °F
(-20 °C to +115 °C)
Project planning note!Excessive current levels (I > 1200 mA at 12 V or I > 600 mA at 24 V) to the ER solenoid can result in undesired pres-sure increases which can lead to pump or system damage. Therefore:
▶ Use Imax current limiter solenoids. ▶ An intermediate plate pressure controller can be used
to protect the pump in the event of overflow.An accessory kit with intermediate plate pressure controller can be ordered from Bosch Rexroth under part number R902490825.
Bosch Rexroth AG, RE-A 92711/04.2017
20 A10VSO Series 31 | Axial piston variable pumpDimensions, size 18
Dimensions [in (mm)]
Dimensions, size 18
DFR/DFR1 – Pressure flow controller, hydraulic, clockwise rotation
Valve mounting for counter-clockwise rotation
Detail V
Flange ISO 3019-1
Detail W
W
V
XL
L1
S
S
B
B5.08 (129)
0.25 (6.3)3.27 (83)
7.68 (195)
2.48
(63
)
5.71 (145)1.69(43)
0.45 (11.5)
L0.43(
11)
45°45° 1.57
(40)
max
.4.3
3 (1
10)
2.52
(64
)2.
72 (
69)
4.96 (126)
5.98 (152)4.29 (109)
4.19 (106.4)
1.87
(47.
6)
0.79
(ø20
)
0.87 (22.2)
2.06
(52
.4)
1.03(26.2)
0.98
(ø25
)
(Ø82
.55
-
)
3.25
03.
248
DIA
0.05
40 2.48
(63
) X
2.60(
66)
▼ Port plate 62
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 18
21Dimensions [in (mm)]
▼ Splined shaft 3/4 in (SAE J744) ▼ Splined shaft 3/4 in (SAE J744) ▼ Splined shaft 5/8 in (SAE J744)
S ‒ 11T 16/32DP1) R ‒ 11T 16/32DP1)2) U ‒ 9T 16/32DP1)
1.50 (38)
0.55(14)0.20
(5)
1.18 (30)
0.83(21)
1/4-
20U
NC
-2B
3) 4
)
1/4-
20U
NC
-2B
3) 4
) 0.55(14)
1.50 (38)
0.83(21)
0.20(5)
Usable spline length
1.25(31.8)
0.94(23.8)
0.62(15.8)
Centering5)
R 0,12 × 0.26 (R 3.15 × 6.7) DIN 332
▼ Parallel keyed shaft, ISO 3019-1
K ‒ 19–1
Centering5)
R 0.12 × 0.26DIN 332
1.61(41)
0.098(2.5)
1.13(28.6)
1.30 (33)
0.83
(21.
1)
(ø19
.05
) 0 – 0.
02
0.75
000.
7492
DIA
Key width0.19 (4.76)
Ports Standard Size4) pmax abs [psi (bar)]6) State9)
B Working port (standard pressure series)Fastening thread
SAE J518ASME B1.1
3/4 in3/8-16 UNC-2B; 0.79 (20) deep
5100 (350) O
S Suction port (standard pressure series)Fastening thread
SAE J518ASME B1.1
1 in3/8-16 UNC-2B; 0.79 (20) deep
145 (10) O
L Drain port ISO 119267) 9/16-18 UNF-2B; 0.47 (12) deep 30 (2) O8)
L1 Drain port ISO 119267) 9/16-18 UNF-2B; 0.47 (12) deep 30 (2) X8)
X Pilot pressure ISO 11926 7/16-20 UNC-2B; 0.47 (12) deep 5100 (350) O
X Pilot pressure with DG-control DIN ISO 228 G1/4 in; 0.47 (12) deep 5100 (350) O
1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Splines according to ANSI B92.1a, spline runout is a deviation from standard.
3) Thread according to ASME B1.14) For notes on tightening torques, see the instruction manual5) Coupling axially secured, e.g. with a clamp coupling or radially
mounted clamping screw
6) Depending on the application, momentary pressure peaks can occur. Keep this in mind when selecting measuring devices and fittings.
7) The countersink can be deeper than as specified in the standard.8) Depending on the installation position, L or L1 must be connected
(also see installation instructions starting on page 45).9) O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
Bosch Rexroth AG, RE-A 92711/04.2017
22 A10VSO Series 31 | Axial piston variable pumpDimensions, size 18
Dimensions [in (mm)]
1) To flange surface2) ER7.: 6.34 inch (161 mm) if using an intermediate plate pressure
controller
▼ DG – Two-point control, direct operated ▼ DR – Pressure controller
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
X
0.12
(3)
G 1
/4 in
(25
+0.4)
0.98
1.00
3.50 (89)0.47 (12)
3.82 (97)
5.83 (148)1)
DIA
Valve mounting for counter-clockwise rotation
X
4.96 (126)
max
. 4.3
3 (1
10)
▼ DRG – Pressure controller, remote controlled ▼ ED7.,ER7. – Electro-hydraulic pressure control
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
X
X
5.08 (129)1)
4.96 (126)
1.57
(40
)
4.29 (109)
max
. 4.3
3 (1
10)
Valve mounting for counter-clockwise rotation
4.96 (126)2)
5.51
(14
0)
4.76 (121)1)
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 28
23Dimensions [in (mm)]
Dimensions, size 28
DFR/DFR1 – Pressure flow controller, hydraulic, clockwise rotation
X
XL
L1
W
V
S
B
3.15
(80
)3.
15 (
80)
0.25 (6.3)0.37 (9.5) 3.54 (90)
5.47 (139)
(ø
101.
6
)
4.00
003.
9979
DIA
-0.0
540
7.64 (194)
0.55 (14)1.57 (40)
6.46 (164)
45°45°
6.85 (Ø174)
5.35 (136)4.68 (119)
2.91 (
74)
3.29 (83.5)
5.75 (146)6.46 (164)
max
. 4.3
3 (1
10)
1.57
(40
)2.
91 (
74)
DIA 0.5
5 (ø1
4)
L
S
B 2.31
(58
.7)
1.26
(ø3
2)
1.19 (30.2)
0.87 (22.2)
DIA
0.7
91.
87 (
47.6
)(ø
20)
8.11 (206)
Valve mounting for counter-clockwise rotation
Flange ISO 3019-1
Detail V Detail W
▼ Port plate 62
Bosch Rexroth AG, RE-A 92711/04.2017
24 A10VSO Series 31 | Axial piston variable pumpDimensions, size 28
Dimensions [in (mm)]
▼ Splined shaft 7/8 in (SAE J744) ▼ Splined shaft 7/8 in (SAE J744) ▼ Parallel keyed shaft, ISO 3019-1
S ‒ 13T 16/32DP1) R ‒ 13T 16/32DP1)2) K ‒ 22–1
1.61 (41)
0.63(16)
0.20(5)
1.30 (33.1)
0.99(25.1)
1/4-
20U
NC
-2B
3) 4
)
1/4-
20U
NC
-2B
3) 4
) 0.63(16)
1.61 (41)
0.98(25)
0.20(5)
Usable spline length
(ø22
.225
-0.0
2)
1/4-
20U
NC
-2B
3)4)
0.98
(25
)
1.63 (41.3)
0.63 (16)
1.31 (33.3)
1.13 (28.6)
0.098(2.5)
0.87
500.
8742
DIA
Key width 0.25(6.35)
Ports Standard Size4) pmax abs [psi (bar)]5) State8)
B Working port (standard pressure series)Fastening thread
SAE J518ASME B1.1
3/4 in3/8-16 UNC-2B; 0.79 (20) deep
5100 (350) O
S Suction port (standard pressure series)Fastening thread
SAE J518ASME B1.1
1 1/4 in7/16-14 UNC-2B; 0.94 (24) deep
145 (10) O
L Drain port ISO 119266) 3/4-16 UNF-2B; 0.47 (12) deep 30 (2) O7)
L1 Drain port ISO 119266) 3/4-16 UNF-2B; 0.47 (12) deep 30 (2) X7)
X Pilot pressure ISO 11926 7/16-20 UNC-2B; 0.47 (12) deep 5100 (350) O
X Pilot pressure with DG-control DIN ISO 228 G1/4 in; 0.47 (12) deep 5100 (350) O
1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Splines according to ANSI B92.1a, spline runout is a deviation from standard.
3) Thread according to ASME B1.14) For notes on tightening torques, see the instruction manual5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) The countersink can be deeper than as specified in the standard.7) Depending on the installation position, L or L1 must be connected
(also see installation instructions starting on page 45).8) O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 28
25Dimensions [in (mm)]
▼ DG – Two-point control, direct operated ▼ DFLR – Pressure, flow and power controller
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
0.12
(3)
G 1
/4 in
(25+0
.4)
1.00
0.98
3.92 (99.5)4.21 (107)
6.55 (158)1)
X
L
Valve mounting for counter-clockwise rotation
X
1.57
(40
)
max
. 4.3
3(1
10)
5.35 (136)4.68 (119)
7.80 (198)1)
▼ DR – Pressure controller ▼ DRG – Pressure controller, remote controlled
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
5.35 (136)
max
. 4.3
3(1
10)
X
Valve mounting for counter-clockwise rotation
5.47(139)1)
5.35 (136)4.68 (119)
max
. 4.3
3(1
10)
1.57
(40
)
X ▼ ED7., ER7. – Electrohydraulic pressure control
Port plate 62
Valve mounting for counter-clockwise rotation
X
5.12 (130)1)
5.33 (135.5)2)
5.51
(14
0)
1) To flange surface2) ER7.: 6.71 inch (170.5 mm) if using an intermediate plate pressure
controller
Bosch Rexroth AG, RE-A 92711/04.2017
26 A10VSO Series 31 | Axial piston variable pumpDimensions, size 45
Dimensions [in (mm)]
Dimensions, size 45
DFR/DFR1 – Pressure flow controller, hydraulic, clockwise rotation
Detail V Detail W
Flange ISO 3019-1
Valve mounting for counter-clockwise rotation
W
V
L X
L1
L
6.02 (153)0.37 (9.5)3.78 (96)0.25 (6.3)
(ø10
1.6
)
4.00
003.
9979
DIA
-0.0
540
3.54
(90
)3.
54 (
90)
1.57
(40
)
8.62 (219)8.82 (224)
7.24 (184)1.77 (45)
0.56 (14.3)
DIA 0.5
5 (ø1
4)
3.27 (
83)
45°45°
max
. 4.3
3 (1
10)
3.17
(80
.5)
5.08 (129)
5.75 (146)
DIA 5.75 (ø146)DIA 7.25 (ø184)
3.68 (93.5)
SB
1.41 (35.7)
1.57
(40)
2.75
(69
.9)
0.98
(25
)
2.06
(52.
4)
X
1.03 (26.2)
▼ Port plate 62
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 45
27Dimensions [in (mm)]
▼ Splined shaft 1 in (SAE J744) ▼ Splined shaft 1 in (SAE J744) ▼ Parallel keyed shaft, ISO 3019-1
S ‒ 15T 16/32DP1) R ‒ 15T 16/32DP1)2) K ‒ 25–1
1.81 (45.9)
0.63(16)
0.20 (5)
1.50 (38)
1.18 (30)
1/4-
20U
NC
-2B
3) 4
)
1/4-
20U
NC
-2B
3) 4
)
1.81 (45.9)
1.16(29.5)
0.63(16)
0.20 (5)
Usable spline length
0.09(2.2)
0.63 (16)
1.50 (38.1)
1.37 (34.9)
(ø25
.4
)
1/4-
20U
NC
-2B
3)4)
1.11
(28
.2)
1.81 (45.9)
0 – 0.
03
0.20(5)
DIA
1.0
000
0.99
88
Key width 0.25 (6.35)
Ports Standard Size4) pmax abs [psi (bar)]5) State8)
B Working port (standard pressure series)Fastening thread
SAE J518ASME B1.1
1 in3/8-16 UNC-2B; 0.71 (18) deep
5100 (350) O
S Suction port (standard pressure series)Fastening thread
SAE J518ASME B1.1
1 1/2 in1/2-13 UNC-2B; 0.87 (22) deep
145 (10) O
L Drain port ISO 119266) 7/8 14 UNF-2B; 0.55 (14) deep 30 (2) O7)
L1 Drain port ISO 119266) 7/8 14 UNF-2B; 0.55 (14) deep 30 (2) X7)
X Pilot pressure ISO 11926 7/16-20 UNC-2B; 0.47 (12) deep 5100 (350) O
X Pilot pressure with DG-control DIN ISO 228 G1/4 in 5100 (350) O
1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Splines according to ANSI B92.1a, spline runout is a deviation from standard.
3) Thread according to ASME B1.14) For notes on tightening torques, see the instruction manual5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) The countersink can be deeper than as specified in the standard.7) Depending on the installation position, L or L1 must be connected
(also see installation instructions starting on page 45).8) O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
Bosch Rexroth AG, RE-A 92711/04.2017
28 A10VSO Series 31 | Axial piston variable pumpDimensions, size 45
Dimensions [in (mm)]
▼ DG – Two-point control, direct operated ▼ DFLR – Pressure, flow and power controller
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
X
G 1
/4 in
(25
)
1.00
0.98
+0.4
6.81 (173)1)
4.31 (109.5)4.61 (117)
0.12
(3)
Valve mounting for counter-clockwise rotation
X
1.57
(40
)
5.10 (129)
4.41
(11
2)
8.39 (213)1)
5.75 (146)
▼ DR – Pressure controller ▼ DRG – Pressure controller, remote controlled
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
5.75 (146)
max
. 4.3
3(1
10)
X
Valve mounting for counter-clockwise rotation
X
5.08 (129)5.75 (146)
6.02 (153)1)
max
. 4.3
3(1
10)
1.57
(40
)
X
▼ ED7., ER7. – Electrohydraulic pressure control
Port plate 62
Valve mounting for counter-clockwise rotation
5.51
(14
0)
5.73 (145.5)2)
5.75 (146)1)
1) To flange surface2) ER7.: 7.11 in (180.5 mm) if using an intermediate plate pressure con-
troller
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions sizes 71 and 88
29Dimensions [in (mm)]
Dimensions sizes 71 and 88
DFR/DFR1 – Pressure flow controller, hydraulic, clockwise rotation
V
L1
LX
W
4.09
(10
4)4.
09 (
104)
7.13 (181)
0.24 (6) 4.53 (115)
0.50 (12.7)
10.12 (257)
2.09 (53)0.71 (18)
8.54 (217)
(ø12
7
)
4.99
75D
IA5.
0000
-0.0
630
DIA 07
1 (ø1
8)
3.86 (
98)
45°45°
3.62
(92
)m
ax. 4
.33
(110
)1.
57 (
40)
5.63 (143)4.23 (107.5)6.30 (160)
7.13 (181)8.27 (210)
SBDIA 0.98 (ø25)
2.06 (52.4)
1.03
(26
.2)
3.06
(77.
8)
DIA
1.9
7(ø
50)
1.69 (42.9)
L
X
Flange ISO 3019-1
Valve mounting for counter-clockwise rotation
Detail V Detail W
▼ Port plate 92
Bosch Rexroth AG, RE-A 92711/04.2017
30 A10VSO Series 31 | Axial piston variable pumpDimensions sizes 71 and 88
Dimensions [in (mm)]
▼ Splined shaft 1 1/4 in (SAE J744) ▼ Splined shaft 1 1/4 in (SAE J744) ▼ Parallel keyed shaft, ISO 3019-1
S ‒ 14T 12/24DP1) R ‒ 14T 12/24DP1)2) K ‒ 32–1
5/16
-18U
NC
-2B
3) 4
)
2.18 (55.4)
0.75(19)0.24
(6)
1.87 (47.5)
1.56(39.5)
5/16
-18U
NC
-2B
3) 4
)
0.75(19)
2.18 (55.4)
1.50 (38)
0.24(6)
Usable spline length
0.12(3)
0.75(19)
1.87 (47.5)
1.63 (41.3)
2.18 (55.4)
(ø31
.75
-0.0
3)
5/16
-18U
NC
-2B
3)4)
1.39
(35
.3)
0
0.24(6)
DIA
1.24
881.
2500
Key width 0.31(7.94)
Ports Standard Size4) pmax abs [psi (bar)]5) State8)
B Working port (standard pressure series)Fastening thread
SAE J518ASME B1.1
1 in3/8-16 UNC-2B; 0.71 (18) deep
5100 (350) O
S Suction port (standard pressure series)Fastening thread
SAE J518ASME B1.1
2 in1/2-13 UNC-2B; 0.87 (22) deep
145 (10) O
L Drain port ISO 119266) 7/8 14 UNF-2B; 0.55 (14) deep 30 (2) O7)
L1 Drain port ISO 119266) 7/8 14 UNF-2B; 0.55 (14) deep 30 (2) X7)
X Pilot pressure ISO 11926 7/16-20 UNC-2B; 0.45 (11.5) deep 5100 (350) O
X Pilot pressure with DG-control DIN ISO 228 G1/4 in 5100 (350) O
1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Splines according to ANSI B92.1a, spline runout is a deviation from standard.
3) Thread according to ASME B1.14) For notes on tightening torques, see the instruction manual5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) The countersink can be deeper than as specified in the standard.7) Depending on the installation position, L or L1 must be connected
(also see installation instructions starting on page 45).8) O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions sizes 71 and 88
31Dimensions [in (mm)]
▼ DG – Two-point control, direct operated ▼ DFLR – Pressure, flow and power controller
Port plate 92 Port plate 92
Valve mounting for counter-clockwise rotation
L
X
7.91 (201)1)
0.12
(3)
G 1
/4in
(ø25
+0.4)
DIA
1.00
0.98
5.16 (131)4.86 (123.5)
Valve mounting for counter-clockwise rotation
X
1.57
(40
)
9.53 (242)1)
5.63 (143)
6.30 (160)
4.88
(12
4)
▼ DR – Pressure controller ▼ DRG – Pressure controller, remote controlled
Port plate 92 Port plate 92
Valve mounting for counter-clockwise rotation
max
. 4.3
3(1
10)
6.30 (160)
L
X
Valve mounting for counter-clockwise rotation
X
max
. 4.3
3 (1
10)
5.63 (143)6.30 (160)
1.57
(40
)
7.13 (181)1)
L
X ▼ ED7., ER7. – Electrohydraulic pressure control
Port plate 92
Valve mounting for counter-clockwise rotation
X
L
6.81 (173)1)
5.51
(14
0)
6.30 (160)2)
1) To flange surface2) ER7.: 7.68 in (195 mm) if using an intermediate plate pressure control-
ler
Bosch Rexroth AG, RE-A 92711/04.2017
32 A10VSO Series 31 | Axial piston variable pumpDimensions, size 100
Dimensions [in (mm)]
Dimensions, size 100
DFR/DFR1 – Pressure flow controller, hydraulic, clockwise rotation
Detail V Detail W
Flange ISO 3019-1
Valve mounting for counter-clockwise rotation
VX
L1
W
0.79 (20)
(ø12
7
)
5.00
004.
9975
DIA
-0.0
630
0.24 (6)9.80 (249)
6.89 (175)0.50 (12.7)
3.94
(10
0)3.
94 (
100)
12.48 (317)12.95 (329)
3.74 (95)10.83 (275)
0.69
(17
.5)
5.98
(15
2)
4.17 (
106)
45°
1.57
(40
)3.
74 (
95)
max
. 4.3
3(1
10)
5.84 (148.4)
6.50 (165)
7.09 (180)8.27 (210)
4.65 (118)
B
S
1.26
(32
) 2.63
(66.
7)
1.25 (31.8)
3.50
(88
.9)
2.36
(60)
2.00(50.8)
X
L
▼ Port plate 62
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 100
33Dimensions [in (mm)]
▼ Splined shaft 1 1/2 in (SAE J744) ▼ Splined shaft 1 1/4 in (SAE J744) ▼ Parallel keyed shaft, ISO 3019-1
S ‒ 17T 12/24DP1) U ‒ 14T 12/24DP1)2) K ‒ 38–1
1.10(28)
0.37(9.5)
2.13 (54)
7/16
-14U
NC
-2B
3) 4
)
2.44 (61.9)
1.72(43.5)
5/16
-18U
NC
-2B
3) 4
)
2.18 (55.4)
DIA
1.7
7(ø
45)
1.87(47.5)
1.37(35)
0.75 (19)
0.24 (6)
0.06(1.5)
1.10(28)
2.13 (54)
2.05 (52.1)
2.44 (61.9)
(ø38
.1 -0
.03)
7/16
-14U
NC
-2B
3)4)
1.66
(42
.3)
0
0.37(9)
DIA
1.49
881.
5000
Key width 0.37 (9.52)
Ports Standard Size4) pmax abs [psi (bar)]5) State8)
B Working port (high pressure series)Fastening thread
SAE J518ASME B1.1
1 1/4 in1/2-13 UNC-2B; 0.75 (19) deep
5100 (350) O
S Suction port (standard pressure series)Fastening thread
SAE J518ASME B1.1
2 1/2 in1/2-13 UNC-2B; 1.06 (27) deep
145 (10) O
L Drain port ISO 119266) 1 1/16 12 UNF-2B; 0.63 (16) deep 30 (2) O7)
L1 Drain port ISO 119266) 1 1/16 12 UNF-2B; 0.63 (16) deep 30 (2) X7)
X Pilot pressure ISO 11926 7/16-20 UNC-2B; 0.45 (11.5) deep 5100 (350) O
X Pilot pressure with DG-control DIN ISO 228 G1/4 in; 0.47 (12) deep 5100 (350) O
1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Splines according to ANSI B92.1a, spline runout is a deviation from standard.
3) Thread according to ASME B1.14) For notes on tightening torques, see the instruction manual5) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
6) The countersink can be deeper than as specified in the standard.7) Depending on the installation position, L or L1 must be connected
(also see installation instructions starting on page 45).8) O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
Bosch Rexroth AG, RE-A 92711/04.2017
34 A10VSO Series 31 | Axial piston variable pumpDimensions, size 100
Dimensions [in (mm)]
▼ DG – Two-point control, direct operated ▼ DFLR – Pressure, flow and power controller
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
X
10.55 (268)1)
(ø25
+0.
4 )1.
000.
98
G 1
/4in
0.12
(3)
5.06 (128.5)
5.35 (136)D
IA
Valve mounting for counter-clockwise rotation
X
5.83 (148)
1.57
(40
)
6.50 (165)
5.08
(12
9)
12.13 (308)1)
▼ DR – Pressure controller ▼ DRG – Pressure controller, remote controlled
Port plate 62 Port plate 62
Valve mounting for counter-clockwise rotation
6.50 (165) max
. 4.3
3 (1
10)
X
Valve mounting for counter-clockwise rotationX
1.57
(40
)
5.83 (148)6.50 (165)
9.80 (249)1)
max
. 4.3
3 (1
10)
X
▼ ED7., ER7. – Electrohydraulic pressure control
Port plate 62
Valve mounting for counter-clockwise rotation
X
5.51
(14
0)
6.50 (165)2)
9.49 (241)1)
1) To flange surface2) ER7.: 7.87 in (200 mm) if using an intermediate plate pressure control-
ler
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 140
35Dimensions [in (mm)]
Dimensions, size 140
DFR/DFR1 – Pressure flow controller, hydraulic, clockwise rotation, mounting flange D and C
Detail V Detail W
S
B
3.50
(88
.9)
2.63
(66.
7)1.
26 (
32)
1.25 (31.8)
2.48
(63
)
2.00(50.8)
V
W
X
L1
L
8.74 (222)6.81 (173)
0.50 (12.7)0.25 (6.4)
(ø15
2.4
)
6.00
005.
9975
DIA
-0.0
630 4.33
(11
0)4.
33 (
110)
10.83 (275)
0.83 (21)3.07 (78)
13.27 (337)6.
36 (
161.
6)7.
87 (
200)
0.81(20.6)
45°
4.67
(118
.5) 4.96
(12
6)4.
41 (
112)
1.06
(26
)4.
25 (
108)
5.16 (131) 7.20 (183)8.23 (209)
6.36 (161.6)7.87 (200)
L
LX
2.22
(56
.4)
XL
L1 S
BV
(ø12
7
)
5.00
004.
9975
DIA
-0.063
0
9.78 (248.5)7.83 (199)0.24 (6)
0.50 (12.7)
4.33
(11
0)4.
33 (
110)
11.85 (301)4.09 (104)
0.79 (20)
13.50 (343)
W
45°
0.69
(17
.5)
5.98
(15
2) 1.02
(26
)4.
96 (
126)
4.41
(11
2)4.
25 (
108)
7.20 (183)8.23 (209)
8.27 (210)7.12 (181)
5.16 (131)
4.67 (
118.5
)
2.22
(56
.4)
Flange ISO 3019-1
Valve mounting for counter-clockwise rotation
▼ Port plate 62 Mounting flange D
Flange ISO 3019-1
▼ Port plate 62 Mounting flange C
Bosch Rexroth AG, RE-A 92711/04.2017
36 A10VSO Series 31 | Axial piston variable pumpDimensions, size 140
Dimensions [in (mm)]
▼ Splined shaft 1 3/4 in (SAE J744) ▼ Parallel keyed shaft, ISO 3019-1
S ‒ 13T 8/16DP1) K ‒ 44–1
2.95 (75)
1.26(32)0.39
(10)
2.64 (67)
2.09(53)
1/2-
13U
NC
-2B
2) 3
)
(ø44
.45
)
1/2-
13U
NC
-2B
2)3)
1.94
(49
.3)
2.95 (75)
0.06(1.5)
1.26(32)
2.64 (67)
2.56 (65)
0 -00.
03
0.39(10)
DIA
1.7
500
1.74
88
Key width 0.44 (11.11)
Ports Standard Size3) pmax abs [psi (bar)]4) State7)
B Working port (high pressure series)Fastening thread
SAE J518ASME B1.1
1 1/4 in1/2-13 UNC-2B; 0.94 (24) deep
5100 (350) O
S Suction port (standard pressure series)Fastening thread
SAE J518ASME B1.1
2 1/2 in1/2-13 UNC-2B; 0.94 (24) deep
145 (10) O
L Drain port ISO 119265) 1 1/16 12 UNF-2B; 0.71 (18) deep 30 (2) O6)
L1 Drain port ISO 119265) 1 1/16 12 UNF-2B; 0.71 (18) deep 30 (2) X6)
X Pilot pressure ISO 11926 9/16-18 UNF-2B; 0.51 (13) deep 5100 (350) O
X Pilot pressure with DG-control DIN ISO 228 M14 x 1.5; 0.47 (12) deep 5100 (350) O
MH High pressure measurement(only with control DG)
DIN 3852 M14 x 1.5; 0.47 (12) deep 5100 (350) X
1) Involute spline according to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Thread according to ASME B1.13) For notes on tightening torques, see the instruction manual4) Depending on the application, momentary pressure peaks can occur.
Keep this in mind when selecting measuring devices and fittings.
5) The countersink can be deeper than as specified in the standard.6) Depending on the installation position, L or L1 must be connected
(also see installation instructions starting on page 45).7) O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, size 140
37Dimensions [in (mm)]
▼ DG – Two-point control, direct operated ▼ DFLR – Pressure, flow and power controller
Port plate 62; mounting flange D Port plate 62; mounting flange D
Valve mounting for counter-clockwise rotation
MH
X
6.02 (153)6.22 (158)
10.55 (268)1)
4.25
(10
8)
4.41
(11
2)
1.10
(28
)
0.10
(2.
6)
L
Valve mounting for counter-clockwise rotation
X
5.49
(13
9.5)
12.36 (314)1)
4.25
(10
8)
7.20 (183)8.23 (209)
2.20
(56
)
L
▼ DR – Pressure controller ▼ DRG – Pressure controller, remote controlled
Port plate 62; mounting flange D Port plate 62; mounting flange D
Valve mounting for counter-clockwise rotation
6.69 (170)
1.02
(26
)4.
96 (
126)
L
Valve mounting for counter-clockwise rotation
L
4.96
(12
6)2.
20 (
56)
12.36 (314)1)
X
6.69 (170)5.67 (144)
8.74 (222)1)3)
▼ ED7., ER7. – Electrohydraulic pressure control
Port plate 62; mounting flange D
Valve mounting for counter-clockwise rotation
5.08
(12
9)
7.05 (179)2)
9.49 (241)1)
1) To flange surface2) ER7.: 8.43 in (214 mm) if using an intermediate plate pressure con-
troller
3) For counter-clockwise rotation
Bosch Rexroth AG, RE-A 92711/04.2017
38 A10VSO Series 31 | Axial piston variable pumpDimensions, through drive
Dimensions [in (mm)]
Dimensions, through drive
Flange ISO 3019-1 (SAE) Hub for splined shaft1) Availability over sizes Code
Diameter Symbol Diameter 18 28 45 71 88 100 140
82-2 (A) , , 5/8 in 9T 16/32DP ● ● ● ● ● ● ● K013/4 in 11T 16/32DP ● ● ● ● ● ● ● K52
● = Available – = Not available
▼ 82-2 ▼ 82-2
A1 (to mounting flange)
Section A-B
4.19
(ø106.5)
45°
B
A
A4
0.39(10)
(ø82
.55
)
+0.0
5–0
.02
A3A2
DIA
3.2
5
+0
.002
–0.0
01
Section A-B
A1 (to mounting flange)
B
A 45°
A4
A3
A2
4.19
(ø106.5)
0.39(10)
(ø82
.55
)
+0.0
5–0
.02
DIA
3.2
5
+0
.002
–0.0
01
K01(SAE J744 16-4 (A))
NG A1 A2 A3 A42) K52(SAE J744 19-4 (A-B))
NG A1 A2 A3 A42)
18 7.17 0.39 1.70 M10; 0.57 18 7.17 0.74 1.52 M10; 0.57
(182) (10) (43.3) (14.5) deep (182) (18.8) (38.7) (14.5) deep
28 8.03 0.39 1.33 M10; 0.63 28 8.03 0.74 1.52 M10; 0.63
(204) (10) (33.7) (16) deep (204) (18.8) (38.7) (16) deep
45 9.02 0.42 2.10 M10; 0.63 45 9.02 0.74 1.52 M10; 0.63
(229) (10.7) (53.4) (16) deep (229) (18.9) (38.7) (16) deep
71 10.50 0.46 2.41 M10; 0.79 71 10.50 0.84 1.63 M10; 0.79
(267) (11.8) (61.3) (20) deep (267) (21.3) (41.4) (20) deep
88 10.50 0.46 2.41 M10; 0.79 88 10.50 0.84 1.63 M10; 0.79
(267) (11.8) (61.3) (20) deep (267) (21.3) (41.4) (20) deep
100 13.30 0.41 2.56 M10; 0.63 100 13.30 0.75 1.53 M10; 0.63
(338) (10.5) (65) (16) deep (338) (19) (38.9) (16) deep
140 13.80 0.43 3.04 M10; 0.63 140 13.80 0.74 1.52 M10; 0.63
(350) (10.8) (77.3) (16) deep (350) (18.9) (38.6) (16) deep
1) According to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Thread according to DIN 13, see instruction manual for maximum tightening torques.
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, through drive
39Dimensions [in (mm)]
1) According to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Thread according to DIN 13, see instruction manual for maximum tightening torques.
3) Continuous
Flange ISO 3019-1 (SAE) Hub for splined shaft1) Availability over sizes Code
Diameter Symbol Diameter 18 28 45 71 88 100 140
101-2 (A) , , 7/8 in 13T 16/32DP – ● ● ● ● ● ● K681 in 15T 16/32DP – – ● ● ● ● ● K04
● = Available – = Not available
▼ 101-2 ▼ 101-2
A
B
A4
45°
5.75
(ø146)D
IA 4
.00
+0.0
02–0
.001
A2
A30.39(10)
(ø10
1.6
)
+0.0
5–0
.02
A1 (to mounting flange)
Omitted for NG 28
Section A-B
Omitted for NG 28
A1 (to mounting flange)
Section A-B
A
B
A4
45°
A2
A3
5.75
(ø146)
DIA
4.0
0+0
.002
–0.0
01
0.39(10)
(ø10
1.6
)
+0.0
5–0
.02
K68(SAE J744 22-4 (B))
NG A1 A2 A3 A42) K04(SAE J744 25-4 (B-B))
NG A1 A2 A3 A42)
28 8.03 0.70 1.64 M12;3) 45 9.02 0.72 1.84 M12; 0.71
(204) (17.8) (41.7) (229) (18.4) (46.7) (18) deep
45 9.02 0.70 1.64 M12; 0.71 71 10.50 0.82 1.93 M12; 0.79
(229) (17.9) (41.7) (18) deep (267) (20.8) (49.1) (20) deep
71 10.50 0.80 1.76 M12; 0.79 88 10.50 0.82 1.93 M12; 0.79
(267) (20.3) (44.7) (20) deep (267) (20.8) (49.1) (20) deep
88 10.50 0.80 1.76 M12; 0.79 100 13.30 0.72 1.83 M12; 0.79
(267) (20.3) (44.7) (20) deep (338) (18.2) (46.6) (20) deep
100 13.30 0.71 1.65 M12; 0.79 140 13.80 0.72 1.81 M12; 0.79
(338) (18) (41.9) (20) deep (350) (18.3) (45.9) (20) deep
140 13.80 0.70 1.64 M12; 0.79
(350) (17.8) (41.6) (20) deep
Bosch Rexroth AG, RE-A 92711/04.2017
40 A10VSO Series 31 | Axial piston variable pumpDimensions, through drive
Dimensions [in (mm)]
1) According to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Thread according to DIN 13, see instruction manual for maximum tightening torques.
3) Continuous
Flange ISO 3019-1 (SAE) Hub for splined shaft1) Availability over sizes Code
Diameter Symbol Diameter 18 28 45 71 88 100 140
127-2 (C) , 1 1/4 in 14T 12/24DP – – – ● ● ● ● K071 1/2 in 17T 12/24DP – – – – – ● ● K24
● = Available – = Not available
▼ 127-2 ▼ 127-2
omitted forsize 71/88 A
B
45°
DIA 7.12
(ø181)
A4A2
A3
DIA
5.00
205.
0008
0.51(13)
(ø12
7
)+
0.05
–0.0
2
Section A-B
omitted forsize 71/88
A1 (to mounting flange)
Section A-B
A1 (to mounting flange)
A
B
45°
DIA 7.12
(ø181)
A4
A2
A3
DIA
5.00
205.
0008
0.51(13)
(ø12
7
)+0
.05
–0.0
2
K07(SAE J744 32-4 (C))
NG A1 A2 A3 A42) K24(SAE J744 38-4 (C-C))
NG A1 A2 A3 A42)
71 10.50 0.89 2.31 M16;3) 100 13.30 0.41 2.56 M16;3)
(267) (21.8) (58.6) (338) (10.5) (65)
88 10.50 0.89 2.31 M16;3) 140 13.80 0.31 2.88 M16; 1.26
(267) (21.8) (58.6) (350) (7.9) (73.3) (32) deep
100 13.30 0.77 2.22 M16;3)
(338) (19.5) (56.4)
140 13.80 0.76 2.21 M16; 0.94
(350) (19.3) (56.1) (24) deep
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Dimensions, through drive
41Dimensions [in (mm)]
Flange ISO 3019-1 (SAE) Hub for splined shaft1) Availability over sizes Code
Diameter Symbol Diameter 18 28 45 71 88 100 140
152-4 (A) 1 3/4 in 13T 8/16DP – – – – – – ● K17
● = Available – = Not available
▼ 152-4
A1 (to mounting flange)
Section A-B
A
B A2A4
A30.51(13)
6.00
276.
0008
DIA
+0.0
7–0
.02
6.36
(16
1.6)
6.36 (161.6)
(ø15
2.4
)
K17(SAE J744 44-4 (D))
NG A1 A2 A3 A42)
140 13.78 0.43 3.04 M16×2;3)
(350) (11) (77.3)
1) According to ANSI B92.1a, 30° pressure angle, flat root, side fit, tolerance class 5
2) Thread according to DIN 13, see instruction manual for maximum tightening torques.
3) Continuous
Bosch Rexroth AG, RE-A 92711/04.2017
42 A10VSO Series 31 | Axial piston variable pumpOverview of mounting options
1) Not for main pump NG28 with K682) Not for main pump NG45 with K043) Not for main pump NG71 and NG88 with K07
Overview of mounting options
SAE – mounting flange
Through drive Mounting options – 2nd pump
Flange ISO 3019-1
Hub for splined shaft
Code (A)A10VSO/31 NG (shaft)
A10V(S)O/5x NG (shaft)
Gear pumpDesign (NG)
Through drive available for size
82-2 (A) 5/8 in K01 18 (U) 10 (U)18 (U)
AZPF 18 to 140
3/4 in K52 18 (S, R) 10 (S)18 (S, R)
– 18 to 140
101-2 (B) 7/8 in K68 28 (S, R)45 (U, W)1)
28 (S, R)45 (U, W)1)
AZPN/G 28 to 140
1 in K04 45 (S, R)–
45 (S, R)60, 63, 72 (U, W)2)
PGH4 45 to 140
127-2 (C) 1 1/4 in K07 71 (S, R)88 (S, R)100 (U, W)3)
85 (U, W)3)
100 (U,W)– 71 to 140
1 1/2 in K24 100 (S) 85 (S)100 (S)
PGH5 100 to 140
152-4 (4-hole D) 1 3/4 in K17 140 (S) – – 140
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Combination pumps (A)A10VSO + (A)A10VSO
43Dimensions [in (mm)]
Combination pumps (A)A10VSO + (A)A10VSO
By using combination pumps, it is possible to have inde-pendent circuits without the need for splitter gearboxes.When ordering combination pumps, the type designations of the 1st and 2nd pumps must be linked by a “+”.Order example: AA10VSO100DFR1/31R-VSC62K04+ AA10VSO45DFR/31R-VSC62N00If no further pumps are to be mounted at the factory, the simple type designation is sufficient.It is permissible to use a combination of two single pumps of the same nominal size (tandem pump) considering a dynamic mass acceleration of maximum 10 g (= 98.1 m/s2) without additional support brackets.Each through drive is plugged with a non-pressure-resistant cover. Before commissioning the units, they must therefore be equipped with a pressure-resistant cover. Through drives can also be ordered with pressure-resistant covers. Please specify in plain text.For combination pumps consisting of more than two pumps, the mounting flange must be rated for the permissible mass torque (please contact us).
Permissible mass moment of inertia
Size 18 28 45 71 88 100 140
static Tm lb-ft 369 649 1010 1593 1593 2213 33191) 22132)
(Nm) (500) (880) (1370) (2160) (2160) (3000) (4500)1) (3000)2)
dynamic at 10 g (98.1 m/s2) Tm lb-ft 37 65 101 159 159 221 3321) 2212)
(Nm) (50) (88) (137) (216) (216) (300) (450)1) (300)2)
Weight without through drive and (N00) m lbs 28 40 52 78 78 109 144
(kg) (12.9) (18) (23.5) (35.2) (35.2) (49.5) (65.4)
Weight with through drive and (K..) m lbs 30 43 55 84 84 122 164
(kg) (13.8) (19.3) (25.1) (38) (38) (55.4) (74.4)
Distance, center of gravity without through drive (N00)
l1 in 3.62 3.94 4.45 5.00 5.00 6.34 6.26
(mm) (92) (100) (113) (127) (127) (161) (159)
Distance, center of gravity with through drive (K..)
l1 in 3.86 4.21 4.72 5.39 5.39 7.01 7.09
(mm) (98) (107) (120) (137) (137) (178) (180)
l1l2
m1 m2 m3
l3
m1, m2, m3 Weight of pump [lbs (kg)]
l1, l2, l3 Distance from center of gravity [in (mm)]
Tm = (m1 × l1 + m2 × l2 + m3 × l3) ×1
[lb-ft (Nm)]12 (102)
1) 4-hole flange (D)2) 2-hole flange (C)
Bosch Rexroth AG, RE-A 92711/04.2017
44 A10VSO Series 31 | Axial piston variable pumpConnector for solenoids
Dimensions [in (mm)]
Connector for solenoids
HIRSCHMANN DIN EN 175 301-803-A /ISO 4400without bidirectional suppressor diode H There is the following type of protection with the installed mating connector:
▶ IP65 (DIN/EN 60529)
DIA
1.4
6ø3
7
0.20 (50)
(2.70 68.5)
2.57
(65
.4)
(2)(1)
Mounting bolt M3 tightening torque: MA = 0.37 lb-ft (0.5 Nm)
Cable fitting M16x1.5 tightening torque: MA = 1.11-184 lb- ft (1.5-2.5 Nm)
The seal ring in the cable fitting is suitable for lines of diameter 0.18 in to 0.39 in (4.5 mm to 10 mm).The mating connector is not included in the scope of delivery.This can be supplied by Bosch Rexroth on request.
Electronic controlsControl Electronics Further
information
Electric amplifier VT 20001) analog 29904
Electrical amplifier modules
VT 11029VT 110301)
analog 29741
Valve amplifiers for proportional pressure valves
VT-VSPA1-11)
VT-VSPA1K-11)analog 30111
Bosch Rexroth material number: R902602623Device plug on the solenoidaccording to DIN 43650
1 2
PEA
Notice ▶ If necessary, you can change the position of the con-
nector by turning the solenoid. ▶ The procedure is defined in the instruction manual.
1) Only 24 V nominal voltage
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Installation instructions
45
Installation instructions
GeneralThe axial piston unit must be filled with hydraulic fluid and air bled during commissioning and operation. This must also be observed following a longer standstill as the axial piston unit may empty via the hydraulic lines.Particularly with the “drive shaft up/down” installation position, filling and air bleeding must be carried out com-pletely as there is, for example, a danger of dry running.The leakage in the housing area must be discharged to the reservoir via the highest available tank port (L, L1).For combination pumps, the leakage must be drained off at each pump.If a shared drain line is used for several units, make sure that the respective case pressure is not exceeded. The shared drain line must be dimensioned to ensure that the maximum permissible case pressure of all connected units is not exceeded in any operational conditions, particularly at cold start. If this is not possible, separate drain lines must be installed if necessary.To achieve favorable noise values, decouple all connecting lines using elastic elements and avoid above-reservoir installation. In all operating conditions, the suction lines and the drain lines must flow into the reservoir below the minimum fluid level. The permissible suction height hS results from the total pressure loss. However, it must not be higher than hS max = 31.5 in (800 mm). The minimum suction pressure at port S must also not fall below 12 psi (0.8 bar) absolute during operation and during cold start.When designing the reservoir, ensure adequate distancebetween the suction line and the drain line. This prevents the heated, return flow from being drawn directly back into the suction line.
Key, see page 47.
Installation position See the following examples 1 to 12. Further installation positions are available upon request.Recommended installation position: 1 and 3
Below-reservoir installation (standard)Below-reservoir installation means that the axial piston unit is installed outside of the reservoir and below the minimum fluid level of the reservoir.
Installation position Air bleed Filling
1
ht min SB
F
L
L1
S
h min
L L1
21)
ht min SB
F
LL1
S
h min
L1 L
3
ht min SB
F
L
L1 S
h min
L1 L
41)
ht min SB
F
LL1
S
h min
L L1
1) Because complete air bleeding and filling are not possible in this position, the pump should be air bled and filled in a horizontal position before installation.
Bosch Rexroth AG, RE-A 92711/04.2017
46 A10VSO Series 31 | Axial piston variable pumpInstallation instructions
1) Because complete air bleeding and filling are not possible in this position, the pump should be air bled and filled in a horizontal position before installation.
Above-reservoir installationAbove-reservoir installation means that the axial piston unit is installed above the minimum fluid level of the reservoir. To prevent the axial piston unit from draining in position 6, the height difference hES min must be at least 0.98 in (25 mm).Observe the maximum permissible suction height hS max = 31.5 in (800 mm).A check valve in the drain line is only permissible in individual cases. Consult us for approval..
Installation position Air bleed Filling
5
ht min SB
FL
L1S
h min
hs max
L L
61)
ht min SB
F
L L1S
h min
hs max
hES min
L1 L1
7
ht min SB
F
L
L1 S
h min
hs max
L1 L1
81)
ht min SB
F
LL1
S
h min
hs max
L L
Key, see page 47.
Inside-reservoir installationInside-reservoir installation is when the axial piston unit is installed in the reservoir below the minimum fluid level. The axial piston unit is completely below the hydraulic fluid.If the minimum fluid level is equal to or below the upper edge of the pump, see chapter “Above-reservoir installation”.Axial piston units with electrical components (e.g., electric control, sensors) may not be installed in a reservoir below the fluid level.
Installation position Air bleed Filling
9
h t m
in
SB
L
L1
S
h m
in
Via the highest available port L
Automatically via the open port L or L1 due to the position under the hydraulic fluid level
101)
h t m
inSB
LL1
Sh
min
Via the highest available port L1
Automatically via the open port L, L1 due to the position under the hydraulic fluid level
11
h t m
in
SBL
L1 S
h m
in
Via the highest available port L1
Automatically via the open port L or L1 due to the position under the hydraulic fluid level
121)
h t m
in
SBLL1
S
h m
in
Via the highest available port L
Automatically via the open port L or L1 due to the position under the hydraulic fluid level
RE-A 92711/04.2017, Bosch Rexroth AG
Axial piston variable pump | A10VSO Series 31 Installation instructions
47
Key
F Filling / air bleeding
S Suction port
L; L1 Drain port
SB Baffle (baffle plate)
ht min Minimum required immersion depth (7.87 in (200 mm))
hmin Minimum required distance to the reservoir bottom(3.94 in (100 mm))
hES min Minimum necessary height required to protect the axial piston unit from draining (0.98 in (25 mm))
hS max Maximum permissible suction height (31.5 in (800 mm))
NoticePort F is part of the external piping and must be provided on the customer side to make filling and air bleeding easier.
48
Bosch Rexroth AG, RE-A 92711/04.2017
A10VSO Series 31 | Axial piston variable pumpProject planning notes
Bosch Rexroth CorporationMobile Applications8 Southchase CourtFountain Inn, SC 29644-9018USATelephone (864) 967-2777Facsimile (864) 967-8900www.boschrexroth-us.com
© Bosch Rexroth AG 2017. All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution, as well as in the event of applications for industrial property rights. The data specified within only serves to describe the product. No statements concerning a certain condition or suitability for a certain application can be derived from our information. The information given does not release the user from the obligation of own judgment and verification. It must be remembered that our products are subject to a natural process of wear and aging.
Bosch Rexroth Corporation2315 City Line RoadBethlehem, PA 18017-2131, USATelephone (610) 694-8300Facsimile (610) 694-8467www.boschrexroth-us.com
Axial piston variable pump | A10VSO Series 31
Project planning notes
▶ The (A)A10VSO axial piston variable pump is designed to be used in open circuit.
▶ The project planning, installation and commissioning of the axial piston unit requires the involvement of qualified skilled personnel.
▶ Before using the axial piston unit, please read the corre-sponding instruction manual completely and thoroughly. If necessary, this can be requested from Bosch Rexroth.
▶ Before finalizing your design, please request a binding installation drawing.
▶ The specified data and notes contained herein must be observed.
▶ Depending on the operating conditions of the axial piston unit (working pressure, fluid temperature), the characteristic curve may shift.
▶ Preservation: Our axial piston units are supplied as standard with preservative protection for a maximum of 12 months. If longer preservative protection is required (maximum 24 months), please specify this in plain text when placing your order. The preservation periods apply under optimal storage conditions, details of which can be found in the data sheet 90312 or in the instruction manual.
▶ Not all versions of the product are approved for use in a safety function according to ISO 13849. Please consult the responsible contact person at Bosch Rexroth if you require reliability parameters (e.g. MTTFd) for functional safety.
▶ Depending on the type of control used, electromagnetic effects can be produced when using solenoids. When a direct current is applied, solenoids do not cause electro-magnetic interference nor is their operation impaired by electromagnetic interference. Other behavior can result when a modulated direct current (e.g. PWM signal) is applied. Potential electro-magnetic interference for persons (e.g. persons with a pacemaker) and other components must be tested by the machine manufacturer.
▶ Pressure controllers are not protection against overpres-sure. A pressure relief valve is to be provided for the hydraulic system.
▶ Working ports: – The ports and fastening threads are designed for the
specified maximum pressure. The machine or system manufacturer must ensure that the connecting ele-ments and lines correspond to the specified application conditions (pressure, flow, hydraulic fluid, temperature) with the necessary safety factors.
– The working ports and function ports are only intended to accommodate hydraulic lines.
Safety instructions
▶ During and shortly after operation, there is a risk of getting burnt on the axial piston unit and especially on the solenoids. Take the appropriate safety measures (e.g. by wearing protective clothing).
▶ Moving parts in control equipment (e.g. valve spools) can, under certain circumstances, get stuck in position as a result of contamination (e.g. impure hydraulic fluid, abrasion, or residual dirt from components). As a result, the hydraulic fluid flow and the build-up of torque in the axial piston unit can no longer respond correctly to the operator’s specifications. Even the use of various filter elements (external or internal flow filtration) will not rule out a fault but merely reduce the risk. The machine/system manufacturer must test whether remedial mea-sures are needed on the machine for the application concerned in order to bring the driven consumer into a safe position (e.g. safe stop) and ensure any measures are properly implemented.